xiwei

matlab code for cofdm

next xhapter on digital communication basics, lot of basic stuffs available

包含matlab及C++对图像的基本操作，如：边缘提取，配准等等(Contains matlab and C++ the basic operation of the image, such as: edge detection, registration, etc.)

this code presents a new approach for watermarking

This file is m-file about Implicit BPM for directional coupler waveguide.

matlab光伏mppt扰动观测法变步长的扰动观测法，可以实现最大功率点的跟踪控制(Matlab pv MPPT disturbance observation method, variable step disturbance observation method, can achieve maximum power point tracking control)

本函数在matlab实现阻抗圆图，通过调用switch（）函数，可以得出传输线的反射系数，以及支节匹配等参数，本函数可以实现单、双和三支节匹配。(The realization of the impedance function in matlab circle map, by calling the switch () function of transmission line can be drawn of the reflection coefficient, as well as the support section to match the parameters, this function can achieve a single, double and three matching section.)

说明：  canny算法的一个简易实现,关于两个阈值的连接问题采用了膨胀的方法,较为使用,经比较发现与matlab自带函数相差不大(canny algorithm is a simple implementation, two thresholds on the issue by the expansion of the connection method, the more use, by the comparison function that comes with little difference matlab)

The Simulation Symbol Timing Synchronization using Matlab(The Simulation Symbol Timing Synchroniza tion using Matlab)

对任意一组输入的字符串进行哈夫曼编码，然后解码(Huffman coding and decoding on a set of strings)